# nb: $RPM_BUILD_ROOT is not set when the macros are expanded (at spec parse time)
#     so we set it manually (to empty string), making our Python prefer the correct install scheme location
# platbase/base is explicitly set to %%{_prefix} to support custom values, such as /app for flatpaks
%__python3_sitelib %(RPM_BUILD_ROOT= %{__python3} -Esc "import sysconfig; print(sysconfig.get_path('purelib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")
%python3_sitelib %{_python_memoize -n __python3_sitelib -k __python3}

%__python3_sitearch %(RPM_BUILD_ROOT= %{__python3} -Esc "import sysconfig; print(sysconfig.get_path('platlib', vars={'platbase': '%{_prefix}', 'base': '%{_prefix}'}))")
%python3_sitearch %{_python_memoize -n __python3_sitearch -k __python3}

%__python3_version %(RPM_BUILD_ROOT= %{__python3} -Esc "import sys; sys.stdout.write('{0.major}.{0.minor}'.format(sys.version_info))")
%python3_version %{_python_memoize -n __python3_version -k __python3}

%__python3_version_nodots %(RPM_BUILD_ROOT= %{__python3} -Esc "import sys; sys.stdout.write('{0.major}{0.minor}'.format(sys.version_info))")
%python3_version_nodots %{_python_memoize -n __python3_version_nodots -k __python3}

%__python3_platform %(RPM_BUILD_ROOT= %{__python3} -Esc "import sysconfig; print(sysconfig.get_platform())")
%python3_platform %{_python_memoize -n __python3_platform -k __python3}

%__python3_platform_triplet %(RPM_BUILD_ROOT= %{__python3} -Esc "import sysconfig; print(sysconfig.get_config_var('MULTIARCH'))")
%python3_platform_triplet %{_python_memoize -n __python3_platform_triplet -k __python3}

%__python3_ext_suffix %(RPM_BUILD_ROOT= %{__python3} -Esc "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))")
%python3_ext_suffix %{_python_memoize -n __python3_ext_suffix -k __python3}

%__python3_cache_tag %(RPM_BUILD_ROOT= %{__python3} -Esc "import sys; print(sys.implementation.cache_tag)")
%python3_cache_tag %{_python_memoize -n __python3_cache_tag -k __python3}

%py3dir %{_builddir}/python3-%{name}-%{version}-%{release}

%_py3_shebang_s s
%__py3_shebang_P %(RPM_BUILD_ROOT= %{__python3} -Ic "import sys; print('P' if hasattr(sys.flags, 'safe_path') else '')")
%_py3_shebang_P %{_python_memoize -n __py3_shebang_P -k __python3}
%py3_shbang_opts -%{?_py3_shebang_s}%{?_py3_shebang_P}
%py3_shbang_opts_nodash %(opts=%{py3_shbang_opts}; echo ${opts#-})
%py3_shebang_flags %(opts=%{py3_shbang_opts}; echo ${opts#-})
%py3_shebang_fix %{expand:\\\
  if [ -z "%{?py3_shebang_flags}" ]; then
    shebang_flags="-k"
  else
    shebang_flags="-ka%{py3_shebang_flags}"
  fi
  %{__python3} -B %{_rpmconfigdir}/redhat/pathfix.py -pni %{__python3} $shebang_flags}

# Use the slashes after expand so that the command starts on the same line as
# the macro
%py3_build() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} build --executable="%{__python3} %{py3_shbang_opts}" %{?*}
}

%py3_build_wheel() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} bdist_wheel %{?*}
}

%py3_install() %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  %{__python3} %{py_setup} %{?py_setup_args} install -O1 --skip-build --root %{buildroot} --prefix %{_prefix} %{?*}
  rm -rfv %{buildroot}%{_bindir}/__pycache__
}

%py3_install_wheel() %{expand:\\\
  %{__python3} -m pip install -I dist/%{1} --root %{buildroot} --prefix %{_prefix} --no-deps --no-index --no-warn-script-location
  rm -rfv %{buildroot}%{_bindir}/__pycache__
  for distinfo in %{buildroot}%{python3_sitelib}/*.dist-info %{buildroot}%{python3_sitearch}/*.dist-info; do
    if [ -f ${distinfo}/direct_url.json ]; then
      rm -fv ${distinfo}/direct_url.json
      sed -i '/direct_url.json/d' ${distinfo}/RECORD
    fi
  done
}

# With $PATH and $PYTHONPATH set to the %%buildroot,
# try to import the Python 3 module(s) given as command-line args or read from file (-f).
# Respect the custom values of %%py3_shebang_flags or set nothing if it's undefined.
# Filter and check import on only top-level modules using -t flag.
# Exclude unwanted modules by passing their globs to -e option.
# Useful as a smoke test in %%check when running tests is not feasible.
# Use spaces or commas as separators if providing list directly.
# Use newlines as separators if providing list in a file.
%py3_check_import(e:tf:) %{expand:\\\
  PATH="%{buildroot}%{_bindir}:$PATH"\\\
  PYTHONPATH="${PYTHONPATH:-%{buildroot}%{python3_sitearch}:%{buildroot}%{python3_sitelib}}"\\\
  _PYTHONSITE="%{buildroot}%{python3_sitearch}:%{buildroot}%{python3_sitelib}"\\\
  PYTHONDONTWRITEBYTECODE=1\\\
  %{lua:
  local command = "%{__python3} "
  if rpm.expand("%{?py3_shebang_flags}") ~= "" then
    command = command .. "-%{py3_shebang_flags}"
  end
  command = command .. " %{_rpmconfigdir}/redhat/import_all_modules.py "
  -- handle multiline arguments correctly, see https://bugzilla.redhat.com/2018809
  local args=rpm.expand('%{?**}'):gsub("[%s\\\\]*%s+", " ")
  print(command .. args)
  }
}

# This only supports Python 3.5+ and will never work with Python 2.
# Hence, it has no Python version in the name.
%pycached() %{lua:
  path = rpm.expand("%{?*}")
  if (string.sub(path, "-3") ~= ".py") then
    rpm.expand("%{error:%%pycached can only be used with paths explicitly ending with .py}")
  else
    print(path)
    pyminor = path:match("/python3.(%d+)/") or "*"
    dirname = path:match("(.*/)")
    modulename = path:match(".*/([^/]+).py")
    -- %%python3_cache_tag is not used here because this macro supports not-installed CPythons
    print("\\n" .. dirname .. "__pycache__/" .. modulename .. ".cpython-3" .. pyminor .. "{,.opt-?}.pyc")
  end
}

# Environment variables used by %%pytest, %%tox or standalone, e.g.:
#  %%{py3_test_envvars} %%{python3} -m unittest
%py3_test_envvars %{expand:\\\
  CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}"\\\
  PATH="%{buildroot}%{_bindir}:$PATH"\\\
  PYTHONPATH="${PYTHONPATH:-%{buildroot}%{python3_sitearch}:%{buildroot}%{python3_sitelib}}"\\\
  PYTHONDONTWRITEBYTECODE=1\\\
  %{?__pytest_addopts:PYTEST_ADDOPTS="${PYTEST_ADDOPTS:-} %{__pytest_addopts}"}\\\
  PYTEST_XDIST_AUTO_NUM_WORKERS="${PYTEST_XDIST_AUTO_NUM_WORKERS:-%{_smp_build_ncpus}}"}

# This is intended for Python 3 only, hence also no Python version in the name.
%__pytest /usr/bin/pytest%(test %{python3_pkgversion} == 3 || echo -%{python3_version})
%pytest %py3_test_envvars %__pytest